'Our journey is not complete'

Chang Lee/The New York TimesBarack Obama, waves to the crowd during his inauguration with his wife, Michelle, at left, and daughters Malia and Sasha and Vice President Biden, at right, watch on Monday, January 21, 2013, at the U.S. Capitol in Washington.

Pablo Martinez Montsivais/AP PhotoThe sun rises behind the Capitol Dome early in the morning before the ceremonial swearing-in of President Barack Obama at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013.

Carolyn Kaster/AP PhotoPresident Barack Obama kisses first lady Michelle Obama after being sworn-in at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013.

Carolyn Kaster/AP PhotoPresident Barack Obama as Beyonce sings the National Anthem at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013.

Paul Sancya/AP PhotoPresident Barack Obama kisses his wife, Michelle, after the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. At right is Chief Justice John Roberts.

Stephen Crowley/The New York TimesPresident Barack Obama during his ceremonial Inauguration shakes hands with former Pres. Jimmy Carter as Bill and Hillary Clinton look on Monday, Jan. 21, 2013.

Chang W. Lee/The New York TimesVice President Joe Biden greets Associate Justice of the Supreme Court Sonia Sotomayor, who administered the oath of office to him, as his family looks on, during the presidential public swearing-in on the west front of the Capitol during the 57th inauguration in Washington, Jan. 21, 2013. President Barack Obama renewed his oath of office just before midday Monday, ceremonially marking the beginning of another four years in the White House.

Win McNamee/pool photo via The New York TimesPresident Barack Obama greets Beyonce after she performed the National Anthem at the public swearing-in during the 57th inauguration at the Capitol in Washington, Jan. 21, 2013. Obama renewed his oath of office just before midday Monday, ceremonially marking the beginning of another four years in the White House.

Susan Walsh/AP PhotoPresident Barack Obama salutes as he leaves with his family following the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington Monday, Jan. 21, 2013.

President Barack Obama declared on Monday that a decade of war is ending and the nation's economy is recovering as he launched into a second term before a flag-waving crowd of hundreds of thousands on the National Mall.